detroit. is jimmy hoffa's body buried underneath. >>> and we'll see if david goggins broke the guinness world record for pullups in our stu o studio. >> that's tomorrow morning on "today." next week here on "rock center," correspondent richard engle has the special story of lewis loftus. richard first met him on an awful battlefield in afghanistan. the two men have stayed in touch and now almost two years later, we get to see the struggles that this young veteran is going through. >> i used to be one of those guys that made fun of people with post trauma stress in, my mind, not to their face. i'd think what a sissy, you know, what a sissy. now i realize that it's a real thing. >> that will be among our stories next week on "rock center." for everyone who worked so hard to bring you tonight's broadcast, thanks for being with us. good night from new york. >>> a mom on the run, wanted for using her child to do her dirty work. the alleged crime spree and where she could be now. >>> roseanne's presidential campaign hits the bay area. the news is next. our science teacher helped us build it.